How much revenue sits unused in your CRM?

Before you approve the next budget for ads or purchased leads, one simple question is worth asking: What is the base you already own actually worth?

The answer is a calculation with four variables, and for most B2B companies it comes out surprisingly high.

The formula

Relevant contacts
  × reactivation rate     = reactivated customers
  × avg. order value      = revenue potential

An example with typical mid-market numbers:

2,500 relevant contacts
  × 4% reactivation rate   = 100 customers
  × €2,500 order value     = €250,000 revenue

A quarter of a million, from data that has already been paid for, collected and forgotten.

Run your own numbers

The calculator deliberately works in three scenarios instead of one wishful number; the full version with all inputs lives at the reactivation calculator.

Estimating the variables honestly

For the calculation to hold, the inputs have to be honest. Here is how to set them:

Relevant contacts

What counts is not the raw database but what remains after cleaning: no active customers, no objections, no dead addresses, no contacts without fit. In practice, 40–70% of the raw database remains. How to get there cleanly is shown in Reactivate old CRM contacts.

Reactivation rate

The honest answer: you do not know it in advance. Hence three scenarios:

Scenario	Rate	When realistic
Conservative	2%	old data, weak reason, first attempt
Realistic	5%	maintained data, concrete reason, clean follow-up
Optimistic	10%	fresh data, strong reason (e.g. maintenance due), close customer relationship

Average order value

Take the average of the last twelve months, not the dream deal. For reactivated customers, order value tends to sit above the new-customer average: the trust already exists, cross-sell and upsell come easier.

Potential vs. cost: the real comparison

The calculation only gets sharp in comparison with the alternative. What does a new customer cost you via ads or outbound, all costs included? For most B2B companies, CAC sits in the high three to four digits. Reactivated customers come from data you already own: the acquisition cost is reduced to process and operations.

Hence the ground rule: first check what sits in your base, then approve budget for new leads. Both together are the most stable setup, but the order decides the ROI.

From potential to plan

A number on paper does not reactivate a single customer. The path there:

1. Review the base and build the shortlist → Reactivate old CRM contacts
2. Set up the campaign → Build a reactivation campaign
3. Write the right emails → Reactivate customers by email

Or you skip steps 1–3: with Bestandsgold we take over the complete reactivation based on a single CSV, and in a free call you see upfront what your base can realistically deliver.